Japan Geoscience Union Meeting 2014

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International Session (Poster)

Symbol P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM08_2PO1] Space Weather and Space Climate

Fri. May 2, 2014 4:15 PM - 5:30 PM Poster (3F)

Convener:*Kataoka Ryuho(National Institute of Polar Research), Yusuke Ebihara(Research Institute for Sustainable Humanosphere, Kyoto University), Kanya Kusano Kanya(Solar-Terrestrial Environment Laboratory, Nagoya University), Toshifumi Shimizu(Institute of Space and Astronautical Science, JAXA), Yoshizumi Miyoshi(Solar-Terrestrial Environement Laboratory, Nagoya University), Ayumi Asai(Unit for Synergetic Studies of Space, Kyoto University), Tatsuhiko Sato(Japan Atomic Energy Agency), Hidekatsu Jin(National Institude of Information and Communications Technology), Kiminori Itoh(Graduate School of Engineering, Yokohama National University), Hiroko Miyahara(College of Art and Design, Musashino Art University)

4:15 PM - 5:30 PM

[PEM08-P08] On the influence of the luni-solar oscillation on the climate

*Kiminori ITOH1, Yang AI1, Shoh KAWANO1 (1.Yokohama National University, Graduate School of Env. & Inf. Sciences)

Keywords:Luni-solar oscillation, Arctic oscillation, Solar wind, Climate

We have demonstrated a close relation between solar wind and regional temperatures, and suggested the participation of the Arctic oscillation. On the other hand, a link between the luni-solar oscillation and the Arctic oscillation has also been suggested [1]. Thus, both the sun and the moon appear to be important climatic factors to consider. An interesting mechanism was proposed recently for the luni-solar oscillation cycle associated with the population change of the snowshoe hare in Canada [2]; that is, the position of the moon changes the intensity of the ionizing cosmic ray to induce changes in the activity of plants, which results in the changes in the forage quality. This mechanism suggests a combination between the influences of the sun and the moon on the climate while their mutual independence is also possible. Thus, we try to examine the possible contribution of the luni-solar oscillation for establishing the effect of the solar wind on the climate. 1) Renato Ramos da Silva and Roni Avissar, The impacts of the Luni-Solar oscillation on the Arctic oscillation, Geophys. Res. Lett., VOL. 32, L22703 (2005)2) Vidar Selås, Linking '10-year' herbivore cycles to the lunisolar oscillation: the cosmic ray hypothesis, Oikos, Volume 123, 194?202 (2014)